Thread: Pressure reliefs
07-14-2011, 04:04 PM #1
I know some people have tested & use larger relief valves that will flow more water than the 3/8 Jetworks. I've seen mention of valves from McMaster being used but couldn't find them on their site. Can anyone give me a part # or recommendation on what is working well for them.
My second question is what is the optimal opening psi for the GPR, & does it differ based on the size & type of valve? Just a guess, but I'm assuming if the pressure is too low the prop won't stay loaded enough under hard acceleration & will cause cavitation.
07-14-2011, 04:07 PM #2
go to a home depot or lowes and find 2-1" brass well valves. The big valves should be set to open at 16-20psi
07-14-2011, 04:36 PM #3
07-14-2011, 06:11 PM #4
07-14-2011, 07:45 PM #5
here you go
07-14-2011, 07:46 PM #6
Here is a pic after I cut half the valve off for better flow.
07-14-2011, 10:23 PM #7
07-14-2011, 10:33 PM #8
Here's my setup with 1" valves.
07-15-2011, 07:18 AM #9
07-15-2011, 04:25 PM #10
Mc Master-Carr Part #
48935k35 Vacuum/Pressure Adjustable Brass Relief Valve, 3/8 male, 0-20 psi
5485k23 Medium Pressure Brass Hex Nipple, 3/8
50785k37 Medium- Pressure Brass Threaded Pipe Fitting,3/8, 90 degree elbow female
I bought a set of 2 and to my door it was $36 and change
Duke do you suggest 2 of these valves on a seadoo pump or just one?
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